./strace-static-x86_64 -e \!wait4,clock_nanosleep,nanosleep -s 100 -x -f ./syz-executor625860382
<...>
Warning: Permanently added '10.128.10.30' (ED25519) to the list of known hosts.
execve("./syz-executor625860382", ["./syz-executor625860382"], 0x7fff72431880 /* 10 vars */) = 0
brk(NULL) = 0x5555717cf000
brk(0x5555717cfd00) = 0x5555717cfd00
arch_prctl(ARCH_SET_FS, 0x5555717cf380) = 0
set_tid_address(0x5555717cf650) = 5824
set_robust_list(0x5555717cf660, 24) = 0
rseq(0x5555717cfca0, 0x20, 0, 0x53053053) = 0
prlimit64(0, RLIMIT_STACK, NULL, {rlim_cur=8192*1024, rlim_max=RLIM64_INFINITY}) = 0
readlink("/proc/self/exe", "/root/syz-executor625860382", 4096) = 27
getrandom("\x5f\x51\xef\x13\xd5\x6f\x44\xb8", 8, GRND_NONBLOCK) = 8
brk(NULL) = 0x5555717cfd00
brk(0x5555717f0d00) = 0x5555717f0d00
brk(0x5555717f1000) = 0x5555717f1000
mprotect(0x7fdc41c21000, 16384, PROT_READ) = 0
mmap(0x1ffffffff000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x1ffffffff000
mmap(0x200000000000, 16777216, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200000000000
mmap(0x200001000000, 4096, PROT_NONE, MAP_PRIVATE|MAP_FIXED|MAP_ANONYMOUS, -1, 0) = 0x200001000000
write(1, "executing program\n", 18executing program
) = 18
mkdirat(AT_FDCWD, "./file0", 020) = 0
mkdirat(AT_FDCWD, "./file1", 000) = 0
mkdir("./bus", 000) = 0
[ 60.123892][ T30] audit: type=1400 audit(1743998184.029:88): avc: denied { execmem } for pid=5824 comm="syz-executor625" scontext=root:sysadm_r:sysadm_t tcontext=root:sysadm_r:sysadm_t tclass=process permissive=1
mount(NULL, "./bus", "overlay", 0, "workdir=./bus,lowerdir=./file0,upperdir=./file1,") = 0
chdir("./bus") = 0
openat(AT_FDCWD, "cgroup.freeze", O_RDWR|O_CREAT|O_NOCTTY|O_TRUNC|O_APPEND|FASYNC|0x18, 000) = 3
[ 60.178241][ T30] audit: type=1400 audit(1743998184.079:89): avc: denied { mounton } for pid=5824 comm="syz-executor625" path="/root/bus" dev="sda1" ino=1929 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=dir permissive=1
[ 60.200877][ T30] audit: type=1400 audit(1743998184.079:90): avc: denied { unlink } for pid=5824 comm="syz-executor625" name="#1" dev="sda1" ino=1933 scontext=root:sysadm_r:sysadm_t tcontext=root:object_r:user_home_t tclass=chr_file permissive=1
mmap(0x200000000000, 11755520, PROT_READ|PROT_WRITE|PROT_GROWSDOWN, MAP_SHARED|MAP_FIXED|MAP_POPULATE|MAP_STACK, 3, 0) = 0x200000000000
[ 60.223251][ T30] audit: type=1400 audit(1743998184.079:91): avc: denied { mount } for pid=5824 comm="syz-executor625" name="/" dev="overlay" ino=1928 scontext=root:sysadm_r:sysadm_t tcontext=system_u:object_r:fs_t tclass=filesystem permissive=1
[ 60.245525][ T5824] ------------[ cut here ]------------
[ 60.245553][ T5824] WARNING: CPU: 0 PID: 5824 at fs/file.c:1201 file_seek_cur_needs_f_lock+0x141/0x190
[ 60.245598][ T5824] Modules linked in:
[ 60.245622][ T5824] CPU: 0 UID: 0 PID: 5824 Comm: syz-executor625 Not tainted 6.14.0-syzkaller-13546-g16cd1c265776 #0 PREEMPT(full)
[ 60.245641][ T5824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 60.286848][ T5824] RIP: 0010:file_seek_cur_needs_f_lock+0x141/0x190
[ 60.293422][ T5824] Code: 31 ff 89 c3 89 c6 e8 0e 9e 7f ff 84 db 74 15 e8 25 a3 7f ff bb 01 00 00 00 89 d8 5b 5d 41 5c c3 cc cc cc cc e8 10 a3 7f ff 90 <0f> 0b 90 eb e0 e8 05 a3 7f ff 31 db 89 d8 5b 5d 41 5c c3 cc cc cc
[ 60.313060][ T5824] RSP: 0018:ffffc90002f07df8 EFLAGS: 00010293
[ 60.319117][ T5824] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff823b9ae2
[ 60.327108][ T5824] RDX: ffff888031808000 RSI: ffffffff823b9b00 RDI: 0000000000000001
[ 60.335105][ T5824] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
[ 60.343077][ T5824] R10: 0000000000000000 R11: 0000000000000000 R12: bfffffffffffffff
[ 60.351072][ T5824] R13: 0000000000000005 R14: 00000ffffffff000 R15: 00000ffffffff000
[ 60.359031][ T5824] FS: 00005555717cf380(0000) GS:ffff8881249b3000(0000) knlGS:0000000000000000
[ 60.367964][ T5824] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 60.374570][ T5824] CR2: 0000200000001000 CR3: 0000000026d60000 CR4: 00000000003526f0
[ 60.382548][ T5824] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 60.390534][ T5824] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 60.398480][ T5824] Call Trace:
[ 60.401765][ T5824]
[ 60.404683][ T5824] generic_file_llseek_size+0x153/0x480
[ 60.410249][ T5824] ext4_llseek+0x180/0x2f0
[ 60.414662][ T5824] vfs_llseek+0x9a/0xe0
[ 60.418802][ T5824] ovl_llseek+0x15c/0x2c0
[ 60.423149][ T5824] ksys_lseek+0xf0/0x1b0
[ 60.427398][ T5824] do_syscall_64+0xcd/0x260
[ 60.431950][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 60.437832][ T5824] RIP: 0033:0x7fdc41bae4a9
[ 60.442259][ T5824] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 60.461916][ T5824] RSP: 002b:00007ffc49e17ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
[ 60.470332][ T5824] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fdc41bae4a9
[ 60.478290][ T5824] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003
[ 60.486280][ T5824] RBP: 00007fdc41c21610 R08: 0000000000000000 R09: 0000000000000000
[ 60.494280][ T5824] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001
[ 60.502264][ T5824] R13: 00007ffc49e180c8 R14: 0000000000000001 R15: 0000000000000001
[ 60.510256][ T5824]
[ 60.513254][ T5824] Kernel panic - not syncing: kernel: panic_on_warn set ...
[ 60.520522][ T5824] CPU: 0 UID: 0 PID: 5824 Comm: syz-executor625 Not tainted 6.14.0-syzkaller-13546-g16cd1c265776 #0 PREEMPT(full)
[ 60.532552][ T5824] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
[ 60.542576][ T5824] Call Trace:
[ 60.545834][ T5824]
[ 60.548736][ T5824] dump_stack_lvl+0x3d/0x1f0
[ 60.553314][ T5824] panic+0x71c/0x800
[ 60.557183][ T5824] ? __pfx_panic+0x10/0x10
[ 60.561585][ T5824] ? show_trace_log_lvl+0x29b/0x3e0
[ 60.566778][ T5824] ? check_panic_on_warn+0x1f/0xb0
[ 60.571875][ T5824] ? file_seek_cur_needs_f_lock+0x141/0x190
[ 60.577756][ T5824] check_panic_on_warn+0xab/0xb0
[ 60.582667][ T5824] __warn+0xf6/0x3c0
[ 60.586533][ T5824] ? file_seek_cur_needs_f_lock+0x141/0x190
[ 60.592396][ T5824] report_bug+0x3c3/0x580
[ 60.596697][ T5824] ? file_seek_cur_needs_f_lock+0x141/0x190
[ 60.602558][ T5824] handle_bug+0x184/0x210
[ 60.606869][ T5824] exc_invalid_op+0x17/0x50
[ 60.611345][ T5824] asm_exc_invalid_op+0x1a/0x20
[ 60.616162][ T5824] RIP: 0010:file_seek_cur_needs_f_lock+0x141/0x190
[ 60.622640][ T5824] Code: 31 ff 89 c3 89 c6 e8 0e 9e 7f ff 84 db 74 15 e8 25 a3 7f ff bb 01 00 00 00 89 d8 5b 5d 41 5c c3 cc cc cc cc e8 10 a3 7f ff 90 <0f> 0b 90 eb e0 e8 05 a3 7f ff 31 db 89 d8 5b 5d 41 5c c3 cc cc cc
[ 60.642222][ T5824] RSP: 0018:ffffc90002f07df8 EFLAGS: 00010293
[ 60.648257][ T5824] RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff823b9ae2
[ 60.656199][ T5824] RDX: ffff888031808000 RSI: ffffffff823b9b00 RDI: 0000000000000001
[ 60.664137][ T5824] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
[ 60.672079][ T5824] R10: 0000000000000000 R11: 0000000000000000 R12: bfffffffffffffff
[ 60.680018][ T5824] R13: 0000000000000005 R14: 00000ffffffff000 R15: 00000ffffffff000
[ 60.687962][ T5824] ? file_seek_cur_needs_f_lock+0x122/0x190
[ 60.693825][ T5824] ? file_seek_cur_needs_f_lock+0x140/0x190
[ 60.699698][ T5824] ? file_seek_cur_needs_f_lock+0x140/0x190
[ 60.705560][ T5824] generic_file_llseek_size+0x153/0x480
[ 60.711081][ T5824] ext4_llseek+0x180/0x2f0
[ 60.715471][ T5824] vfs_llseek+0x9a/0xe0
[ 60.719599][ T5824] ovl_llseek+0x15c/0x2c0
[ 60.723900][ T5824] ksys_lseek+0xf0/0x1b0
[ 60.728118][ T5824] do_syscall_64+0xcd/0x260
[ 60.732594][ T5824] entry_SYSCALL_64_after_hwframe+0x77/0x7f
[ 60.738455][ T5824] RIP: 0033:0x7fdc41bae4a9
[ 60.742838][ T5824] Code: 48 83 c4 28 c3 e8 37 17 00 00 0f 1f 80 00 00 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
[ 60.762413][ T5824] RSP: 002b:00007ffc49e17ef8 EFLAGS: 00000246 ORIG_RAX: 0000000000000008
[ 60.770792][ T5824] RAX: ffffffffffffffda RBX: 0000200000000140 RCX: 00007fdc41bae4a9
[ 60.778733][ T5824] RDX: 0000000000000001 RSI: 0000000000000005 RDI: 0000000000000003
[ 60.786673][ T5824] RBP: 00007fdc41c21610 R08: 0000000000000000 R09: 0000000000000000
[ 60.794628][ T5824] R10: 0000000000000003 R11: 0000000000000246 R12: 0000000000000001
[ 60.802598][ T5824] R13: 00007ffc49e180c8 R14: 0000000000000001 R15: 0000000000000001
[ 60.810564][ T5824]
[ 60.813805][ T5824] Kernel Offset: disabled
[ 60.818118][ T5824] Rebooting in 86400 seconds..